Optical element and system using the same

Optical waveguides – With optical coupler – Particular coupling structure

Reexamination Certificate

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C385S033000, C385S051000

Reexamination Certificate

active

11802044

ABSTRACT:
An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.

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